Historically, most folks on this forum tend to 
take a dim view of people who purchase cels from a 
publicly available source, then turn around and 
quickly resell them for a profit.

For instance, the Lord of Nightmares cel that you 
purchased recently for 40000 yen -- many other 
people tried to order that cel, and were too late. 
While I'm sure they were initially happy for the 
lucky buyer, I'm equally sure that they now feel 
upset that this person may have done so out of 
mercenary interests rather than love of the cel.

While this topic has come up periodically over the 
years, the most recent iteration was before you 
started posting to the forum, so I thought you 
should know.

Now obviously, somebody who wants the cel badly 
enough to put aside personal feelings may be 
willing to purchase one or the other of those rare 
items you're reselling.  However, if you were to 
reprice the cels at or near what you paid, you 
would have a lot more takers... and more 
credibility as a collector in the future.

Just my 2-cents' worth.  And I would like very 
much to request that anyone who responds to this 
thread please post their name -- the anonymous 
thing is really getting old.  Arigatou, mina-san!